diff --git a/research/data.md b/research/data.md
index 777661fbc2130333559d2b7fb9f4e2e7cb1ed61f..ef1711bf2229b053f4cf5908c9fd73ee592dc956 100644
--- a/research/data.md
+++ b/research/data.md
@@ -5,7 +5,7 @@
 * Ontologies and how to deal with lists.
 * Standards: schema.org, microdata, microformats, json, yaml, csv, dot, vcard.
 * Intelligence: how to easilly search, index and produce outputs with strutured data?
-* Samples: TODO and ChangeLog (see [yankee: Changelogs meet YAML](https://github.com/studio-b12/yankee)).
+* Samples: TODO and [ChangeLog](http://keepachangelog.com) (see [yankee: Changelogs meet YAML](https://github.com/studio-b12/yankee)).
 
 ## Software